Water was the main source of mechanical power, and by the end of the seventeenth century, England alone is thought to have had some 20,000 working mills.

水是机械动力的主要来源，而到了17世纪末，人们认为仅英格兰就有2万个左右的工作磨坊。

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We intend to take him and we intend to take power from every source and bring it back to the parliament.

我们打算接受他，而且我们打算从每一种资源获取权力，然后再把它带回议会里。

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They have a material that supplies electrons and a power source that lifts the energy level of those electrons.

VOA: special.2010.09.01

And so Richard is learning a grammar of race even while he tries to work out how to use language as a source of power in his family.

所以理查在学习语言的艺术,虽局限于种族,就是他在家里受尽磨难时也在学习语言的魔力。

耶鲁公开课 - 1945年后的美国小说课程节选

His magic is directed at the metadivine realm, trying to tap into its powers. It's not directed at the gods. It's trying to tap into the ultimate source of power to use that power to influence the gods in a particular way or protect oneself against the gods.

这种法术的对象是超神领域，试图获得其中的神力,它不直接针对神，而是通过接近,神力的源头来获得力量，用特殊的方式影响众神,或保护某人不受到神的伤害。

耶鲁公开课 - 旧约导论课程节选

Point Source Power, a project out of Lawrence Berkeley National Labs, has created a dung-powered fuel cell for emerging markets.

FORBES: Why Are Portable Fuel Cells Such A Flop?

Personally, I just think that solar makes the most sense as an energy technology, and the tech innovations in solar power are such that I expect it to be the most common source of power before the century is out.

FORBES: The Cost of Solar Power Is Expected to Decline 50% Over the Next Decade

Autonomous control over supply, via aggregation in unions, became their only source of power.

FORBES: Entrepreneurs are the New Labor: Part I